Alginate + Chitosan - Gelling System - pH related gel strength - (Demonstration Video)

Bromothymol blue indicator only added for the colour effect! Demonstration of an alginate chitosan gelling system in relation to the publications: Khong, T. T., Aarstad, O. A., Skjåk-Bræk, G., Draget, K. I., & Vårum, K. M. (2013). Gelling concept combining chitosan and alginate - Proof of principle. Biomacromolecules, 14(8), 2765–2771. doi.org/10.1021/bm400610b Kopplin, G., Lervik, A., Draget, K. I., & Aachmann, F. L. (2021). Alginate gels crosslinked with chitosan oligomers-a systematic investigation into alginate block structure and chitosan oligomer interaction †. RSC Advances, 11(23), 13780–13798. doi.org/10.1039/d1ra01003d Feng, Y., Kopplin, G., Sato, K., Draget, K. I., & Vårum, K. M. (2017). Alginate gels with a combination of calcium and chitosan oligomer mixtures as crosslinkers. Carbohydrate Polymers, 156, 490–497. doi.org/10.1016/j.carbpol.2016.09.006